Pentair 98205000 sight glass screw, 8-32 thread by 1-3/4 in. longPentair Sight Glass Screw 8-32x1-3/4", 98205000 In stock$499
Pentair 98205000 sight glass screw, 8-32 thread by 1-3/4 in. long
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Pentair Sight Glass Screw 8-32x1-3/4", 98205000

Ask a questionMPN 98205000
$499
In stock
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Quick overview

  • Genuine Pentair The factory 98205000 screw rather than a hardware store substitute.
  • Correct thread and length 8-32 thread, 1-3/4 in. long, the size the valve is tapped for.
  • Holds the sight glass Clamps the sight glass down against the multiport body so the backwash view stays sealed.
  • Fits the 1-1/2 in. side mount Used on the Pentair American Products side mount multiport valves 501501 and 501601.
  • A common failure point Screws in a wet, chlorinated valve body corrode and strip, and a loose one lets the sight glass weep.
  • Keeps the backwash view usable With the sight glass clamped properly you can watch the water run clear and stop the backwash at the right moment.
Full description and specifications ↓

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Product details

The Pentair 98205000 is the sight glass screw for the American Products 1-1/2 in. side mount multiport valve, models 501501 and 501601. It is an 8-32 thread screw, 1-3/4 in. long, and it is the genuine Pentair part.

What it does

The sight glass is the small window that lets you watch backwash water until it runs clear. It is held to the valve body by screws, and those screws carry the clamping load that keeps the window sealed. Sitting in a wet, chlorinated environment, they corrode and their heads strip, and once one will no longer pull down the glass starts to weep.

Before you order

This is the screw only. The sight glass and its gasket are separate parts, so check whether the leak is coming from a loose screw or from a hardened gasket before you order. If the tapped hole in the valve body has stripped rather than the screw, a new screw will not solve it.

Specifications
Brand Pentair
Manufacturer part number 98205000
UPC 788379694067
Type Sight glass screw
Thread 8-32
Length 1-3/4 in.
Fits Pentair American Products 1-1/2 in. side mount multiport valves 501501 and 501601
Shipping weight 0.17 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What size is this screw?
It is an 8-32 thread, 1-3/4 in. long, which is the size the sight glass position on the multiport is tapped for.
Which valve does it fit?
The Pentair American Products 1-1/2 in. side mount multiport valve, models 501501 and 501601.
Does the sight glass come with it?
No. This listing is the screw alone, part number 98205000. The sight glass itself and its gasket are separate parts.
Why would this screw need replacing?
Fasteners in a chlorinated valve body corrode and the heads strip. If the sight glass will not pull down tight, or the screw spins without gripping, replace it rather than forcing it.
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